Slicing machine



- manufacture and easy to operate. A, particuf posed to the inner tracksD3 on the knife shaft D4. D 5 is a channel pulley mounted von the shaftD4 and adapted to receive about it the TED ST WILLIAM J.' CAMPBELL, orInnIANAroILIs, INDIA-NafAssIei-roa To .AMERICANV suc; INGMACHIMECCMPANY, oF CHICAGO, ILLiuoIs, A coaieoRATIoNioF .NEW YRK sLICINeiLLACHInia` Application flied september 19,1'92'7'.' serial No.' 22o,61o.f

Myl invention relates toa slicing machine, and particularly vto aslicing machine for slicing meat, which will be light, simple to larobject of my invention isa provision 'of guard or Vdeilector means forpreventing the access of bits of meat, or other materials operated on,from. penetrating into the spaces between yknife and guard plate,. andfrom penetrating, about the knife, into the knife ,and knifeshafthousing. Other objects will appear from time to time in the courseof the speciication andclaims.

'I illustrate my invention more or less diagrammatically in theaccompanying draw-l ings, wherein Figure 1 is a partial rear elevation;

Figurev 2 lis a section on the line 2-2 of Figure l;

Figure 3 Figure l;

Figure 4 is a partial section, simil-'ar to Figure 2, showing a-variantform of my de-'- Figure 5 is a partial front elevation.

Like parts are vindicated by like symbols throughout the specificationand drawings. A generally indicates any suitable base frame or memberprovided, for example, with the anti-frictional and noise-deadening suports A1.

i ounted on such base member is any suitable motor means, herein shownas the motor B, from which projects themotor shaft B1, on which is thedriving pulley B2 adapted to engage andv drive'the belt B3, whichengages the inclined face channel B4 of the pulley B2.

C is a knife suporting'sleeve mounted upon the base A and including theshield or guard portion C1. Itf-will be understood that in the form ofFigs. l` 2 and 3 this guard or shield portion is continuous with orextends to the motor housing B and may foi-in part of the generallyupwardly projecting housing. or frame member C2. I do vnot wish to belimited in may Claims to this particular disposition or'arrngement, butI find it highly eiicient.

' Mounted within the sleeve portion C is an inner sleeve D, in which aremountedthe ball bearing tracks D1 to support the balls D2 opbelt Bs.

1- penetrating der E7.

is a section on the line 3-3`oi ,n is the kaifeidisk proper, secured toaie and additionally secured to the pulley D5, for exampleby'- thescrews E2. -The knife disk. 1s shown as convex, and is peripherali'y cutawayv or recessed on its hollow face, as at shaft assembly,v forlexample by a. Screw El;

E4, to leavea peripheral portion E5 projecting n a somewhat forwardlyfrom the face of the u' knife. `The periphery of the rear of theknife isrearwardlv inclined as at E", terminating in ashould'erE?, beyond whichthe knife is recessed as-,at E8. It will be understood,

with reference toFi' 2, thatinneriedge of the shield portion 1 conformsgenerally to `the recess E8, approaching closely7 thereto' and beneath"the edge of the. shoul- Referring'to Figfi, the sleeve C is shown" asbeing providedwith,aninwardly projecting apron G, Aabout the pulley.D7.It is fur? v ,ther provided with a terminal cylindrical porj tion G1,which under-some circumstances is preferably reduced, as shown in' 4.

' 'Mounted upon such cylindrical portion Glis a split ring or othersuitable clamping element G2, provided with a lock bolt G? adapted todraw it tightly about-the cylindrical portion G1 to lock it. in positionthereupon.

G4 is a shield portion secured to or integral with the split portion G2,the inner edge of which closely engages'the .ledge E7 andthe recessedportion 'E8 of theknife.

Referring to Figuresl and 3, His a scraper blade adapted toapproachor'to engage the portion EG of the knife'. It is provided with abody portion H1 engaging the face of' the apronl or shield C1.' maybe a,plurality ofadjustment slots'HZ,

In such body portion l through which pass the securing and adjust-1 ingscrews Hf. It will be realized that whereas the' sc raper blade H is, inAthe drawings,l shown as applied to the form of Figures'l and 2, it isalso intended to be applied to the-form of Figure 4, it being thoughtthat a detailed view to .that effect ignot necessary'fo clarity.

ico

J inc licates/'a'guard plate secured in any suitable fashion lupon the4frame of the device, such guard 'platelying'in the general plane of theknife,'or rather in a. planeI slightly inc-lined to the plane of theknife, in such fashion that an' edge'of the guard plate penetrates therecess E4 of the knife,`a s shownin I Figure 2. A

Referring primarily to Figure 5 the-guard plate J' may have mounteduponit, for exlzo i 35 thereby be prevented.=

ample at its lower angular portion J1, a

scraper J? engaging the front face of the knife. Referring to Fig. 2 itwill be seen thfat I employ a gauge plate', generally indi- 5 cated asK, which lies in a planeA generally parallel with the gauge plate J. K.generally indieates a. work supporting carriage member and Kga guidetherefore inthe form of g track or rod. y

It will be realized that whereas I have described and shown a practicaland operative device, Anevertheless many changes might be g made in4size, shape, number and disposition of parts Without departing from thespirit 16 of my 'invcntioin I therefore wish my deseription and drawingsto be taken as in a broad sense illustrative and diagrammatic,

.rather than as limiting me to the specific.

` showing herein m'ade.

The use anelfoperation .of my invention' are as follows f `It isextremely desirable to preventvthe entr'y of portions of meat or othermaterial into spaces behind 'the guard plate J or the shield portions C1orG. It will be obf servedilratlth'e knife isrecessed on both itsforward and its rear face, an'd that the guard plate-J penetrates theforward recess and the member C1 or Gr4 the rear recess. It thereforefollows that any b its or crumbs of-Inatevrial which passaoross thefront or rear face of the knife' will engage eitherthe guard plate I `Jor the shieldC1. or G4, and access to the vspace behind the guard plateor shield will In order t o supplement. the consequent disposal of suchfragments and to clear'the edge ofthe knife itself, I provide thedeflector or scraper H, which. may closely engage or 40. maypositively-'scrape the .inner face E6 of the periphery of theknife. v

. I alsojiind it desirable to provide a scraper for thefront of theknife and have indicated the scraper member `shown in Figure 5, .whichopposes aninclinedblade J 2 to the exposed flat portion of the knife.lThe guard plate J and gauge plate y K lie in parallel planes. 'Thecarriage or supportK may be lmidved along the rod K2 and past thecutting edge of the knife.

`I claim: '1. In a slicing machine, a rotary knife and means forrotating it, a guard plate positioned on the forward side of said knifeand a guar-d plate .positioned to the rear of said knife,

both faces of said knife being recessed to receive the edges of saidguard plates adjacent the side of the knife engaging the material beingsliced, the recess`in the rear face, of theA 2. Ina slicing machine, asupporting struc ture, a rotary knife mounted in said` structure andmeans for rotating it', guard plates lpositioned on the forward and therear sides of said knife and guard members, bothl faces of said knifebeing recessed t'o receive the edges of said guard members, andscrapers, associated with sal-dv guard members, extendlng outwardlybeyond sald recesses'.-

3. In a slicing machine, a supporting struc'-A ture, -a rotaryknifemounted in said structure Vand means for rotating it, a guard platepositioned on the -forward side of said knife,

the knife face being recessed toI receive it, andi a scraper blade,engaging the face ofthe knife. associated with said guard.

4. In a slicing machine, a supporting and housing structure, a rotaryknife mounted `on said structure and a knife shaft associated therewith,a bearing member for` said knife shaft, 'a driving'connection associatedwith said knife shaft, a guard member assoclated vwith said bearingmember surrounding and said structure and a knife shaft associatedtherewith, a'bearing member for said knife shaft, a driving connectionassociated with said knife shaft, a guard member associated' with saidbearing member surrounding and enclosing saiddriving connection and eX-tending'toward said knife, the rear face of said knife being recessedtoreceive the edge of said guard member, and a scraper member, associated'with said guard member, adapted to overliethe rear face of'said knifebeyond the portion enclosed by said guard member.

6. In a slicing machine, a supporting and housing structure, a rotaryknife mounted on said structure and a knife shaft associated therewith,a bearing sleeve for said knife shaft,v a driving connection associatedwith said knife shaft, a guard member surrounding and enclosing saiddriving connection and extending toward said knlfe, the real'l Ifacejofsaid knife being recessed to receive the edge of said guard member, anda guard plate positioned on. the forward face of said.

knife, the knife being tilted in relation to said guard plate, to bringthe cutting arc of the knifelforwardly into the plane of said guardplate, the forward face of the knife being re cessed to receive an edgeof said guardplate.

7. Infa slicingmachine, a supporting and housing structure, a rotary'knife mounted on said structure and a knife shaft .associated therewith,a bearing sleeve for said .knife shaft,a driving connection associatedwith said knife shaft, a gua,l imember surrounding and enclosing sai*driving connection and'extending toward said knife, the rear face. ofsaid knife being recessed to receive the edge of said guard member, anda guardguard plate, the forward face of the knife being recessed toreceive an edge of said guard plate, and a scraper member, associatedwith l said guard plate, adapted to overlie the forward face of saidknife. beyond the portion covered by said guard plate.

8. In a slicing machine, a supporting structure, a rotary knife mountedon said structure, and means' for rotating it, a guard plate positionedforwardly of said knife and a gauge plate, the guard and gauge plateslying in generally parallel planes, the knife being tilted in relationto the guard plate to bring its cutting edge forwardly into the planethereof. the forward face of the knife'being recessed to receive an edgeof the guard plate, the guard lplate overlying substantially the entireface of the knife, and a scraper member, associated with said guardplate, adapted to overlie the forwardA face of said knife be* yond theportion covered by said guard plate.

9. In a slicing machine, a supporting structure, a rotary knife mountedon said structure, and means for rotating it, a guard plate positionedforwardly of said knife and a gauge plate, the guard and gauge' plateslying in generally parallel planes, the knife being tilted. in relationto the guard plate to bring its cutting edge forwardly into the planethereof, the forward face of the knife being recessed to receive an edgeof the guard plate, the guard plate overlying substantially the entireface of the knife, and a scraper mernber, associated with said guardplate, adapted to overlie the forward face of said knife beyond theportion covered by said guard plate, driving means'for said knife, aguard member adapted to surround said driving means, extending towardthe rear face of the knife, the rear face of the knife being recessed toreceive the edge thereof, and a scraper inem-l ber, associated with saidguard member, adapted to overlie the rear face of said knife beyond theportion enclosed by said guard I member.

10. In a slicing machine, a rotary knife and means for rotating it, aguard plate positioned on the forward side of saidl k-nife and a guardplate positioned to the rear` of said knife, both faces of said knifebeing recessed to receive the edges of said guard plate adjacent tlieside of the knife engaging the material being sliced, the recess in therear face of the knife being concentric with but of different radiusthan the recess in the forward face of the knife.

Signed at Indianapolis county of Marion and State of Indiana, 4this 26thday of August, 1927.

. WILLIAM J. CAMPBELL.

